1. Calculate the average atomic mass of each element and their grams of acetaminophen C₂H₂NO₂, an over-the- counter analgesic-anti-pyretic also known as paracetamol? Show your solution and dimensional analysis. Express your answer in average atomic mass to 2 decimal places. (1 amu = 1.6605475x10-24g) Isotopic Symbol 12C 13C 14C ¹H 2H ³H 14N 15N 160 170 180 Mass of Atom (u) 12.000000 13.003355 14.003242 1.007825 2.014102 3.016049 14.003074 15.000109 15.994915 16.999132 17.999160 % abundances 98.93 1.07 Mole of C atoms= Mass of C atoms=_ Number of C atoms = 99.9885 0.0115 99.632 0.368 99.757 0.038 0.205 Average Atomic Mass 2. What is the molar mass of CH₂NO₂? 3. How many grams and atoms of carbon are present in 500 grams of acetaminophen (C₂H₂NO₂), which has a molar mass relative to your answer from number 2? Show your solution in dimensional analysis below. (1 mole = 6.022 x 10²3 particles) mol .8 Mass in grams (g) particles 4. An unknown compound is analyzed and found to consist of 24.3 % carbon, 4.1 % hydrogen, and 71.6 % chlorine. If the molar mass of the compound is 98.8 g/mol, what is the molecular formula of the compound?

1. Calculate the average atomic mass of each element and their grams of acetaminophen C₂H₂NO₂, an over-the- counter analgesic-anti-pyretic also known as paracetamol? Show your solution and dimensional analysis. Express your answer in average atomic mass to 2 decimal places. (1 amu = 1.6605475x10-24g) Isotopic Symbol 12C 13C 14C ¹H 2H ³H 14N 15N 160 170 180 Mass of Atom (u) 12.000000 13.003355 14.003242 1.007825 2.014102 3.016049 14.003074 15.000109 15.994915 16.999132 17.999160 % abundances 98.93 1.07 Mole of C atoms= Mass of C atoms=_ Number of C atoms = 99.9885 0.0115 99.632 0.368 99.757 0.038 0.205 Average Atomic Mass 2. What is the molar mass of CH₂NO₂? 3. How many grams and atoms of carbon are present in 500 grams of acetaminophen (C₂H₂NO₂), which has a molar mass relative to your answer from number 2? Show your solution in dimensional analysis below. (1 mole = 6.022 x 10²3 particles) mol .8 Mass in grams (g) particles 4. An unknown compound is analyzed and found to consist of 24.3 % carbon, 4.1 % hydrogen, and 71.6 % chlorine. If the molar mass of the compound is 98.8 g/mol, what is the molecular formula of the compound?

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter4: Energy And Chemical Reactions

Section: Chapter Questions

Problem 120QRT

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1. Calculate the average atomic mass of each element and their grams of acetaminophen C₂H₂NO₂, an over-the-
counter analgesic-anti-pyretic also known as paracetamol? Show your solution and dimensional analysis.
Express your answer in average atomic mass to 2 decimal places.
(1 amu = 1.6605475x10-24g)
Isotopic
Symbol
12C
13C
14C
¹H
2H
3H
14N
15N
160
170
180
Mass of Atom (u)
12.000000
13.003355
14.003242
1.007825
2.014102
3.016049
14.003074
15.000109
15.994915
16.999132
17.999160
% abundances
98.93
1.07
Mole of C atoms=_
Mass of C atoms =
Number of C atoms=_
99.9885
0.0115
99.632
0.368
99.757
0.038
0.205
Average Atomic Mass
2. What is the molar mass of CaHaNO₂? (
3. How many grams and atoms of carbon are present in 500 grams of acetaminophen (C₂H₂NO₂), which has a
molar mass relative to your answer from number 2? Show your solution in dimensional analysis below.
(1 mole = 6.022 x 10²³ particles)
mol
g
Mass in grams (g)
particles
4. An unknown compound is analyzed and found to consist of 24.3 % carbon, 4.1 % hydrogen, and 71.6 %
chlorine. If the molar mass of the compound is 98.8 g/mol, what is the molecular formula of the compound?

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